Launched in 2003 the KZ1 is a sports car built by British car company Ascari. Reaching a top speed of 323km/h, the KZ1 is powered by a highly tuned BMW S62, a 4941 cc V8 engine originally used in the E39 M5 and Z8. Only 50 Ascari KZ1 cars were produced.

The KZ1 gets its name from the initials of Ascari's owner Klaas Zwart, a wealthy Dutch businessman.